Mechanism for stacking cartons and the like



Sept. 26, 1933. M PARlDON 1,928,210

MECHANISM FOR STACKING CARTONS AND THE LIKE Filed Oct. 30, 1931 3Sheets-Sheet l I8 7 I? Q- I I I I I Sept. 26, 1933. M. PARIDON MECHANISMFOR STACKING CARTONS AND THE LIKE 5 Sheets-Sheal 2 Filed Oct. 30, 1951Sept. 26, 1933. v M, pARlDON 1,928,210

MECHANISM FOR STACKING CARTONS AND THE LIKE Filed Oct. 50, 1931 3SheeiLs-SheeI 3 Jul , them in stacked relation.

Patented Sept. 26, 1933 iJNiTD STATES iATENr ori-*ics MECHANISM 4FOR STAcannons THE LIK Michael Paridon, Barberton, Ohio, asisignor 'to TheDiamond Match Company, Baltmere, l Md., a corporation of Maryland A`Application October 30, 1931. Serial No.k 571,949

s claims.' (ci. iis-49p i This invention relates to machines forstacking open-mouth boxes, such as vcartons or trays, having collapsiblesides VIVand-ends, and it has for its l object to provide a simple 'andefficient construction and organization-of mechanism whereby suchexclusively, designed V'for use in connection with or fas an attachmentto machines for Vmaking shal-` low collapsible cartons whereby the lsaidcartons asrap'idly las they are ldischarged from the ma- A chine areintercepted 'and Vcompact-1y assembled.

The invention, broadly considered, comprises time combination With means`for 'supplying collapsible boxes, of simple,` Jdurable and lefficientmeans for natten'ing the boxes and 'arranging speciiica'lly, vtheinvention comprises the combination 'with a carrier for 'supporting a4successiono'f fcollapsible boxes, bottoms downward,

and feeding them ksuccessively to a point of discharge, 'and "a"vertically-reciprocating plunger for discharging the boxes successivelyfrom the carrier, Yof a box receiverA under the path of the phrnger,means for `temporarily supporting each succeeding box at the mouth 'ofthe receiver, and means for folding 'the collapsible end Walls of Vthebox ina iriannerto bend the side walls outwardiy in the same plane asthe bottom of tire box, `and at the same time depressing the flattenedbox into the receiver.

The invention also comprises various features of construction and`combinations of parts which will be hereinafter described; the sc'op'eof the invention Vbeing expressed in the appended claims;

y In the drawings-f Y .'Figure 1 is a front elevation, partly insection, o1 box stacking mechanism embodying the pre'- ferre'd 'form ofmy invention, the mechanism `be ing' represented as associated with thevdischarge portion of'a box making machine.

V,liigjzis fatr'ansverse vertical section, as on the line 2&2 of Fig. 1,showing the parts in their relative positions preparatory tothecollapsing or of the-box by the folding or iron-,- mgmembes. Y

Fig. 3 is a similar section, showing therelative posi-tions of the partsupon theecompletion of the iiattening operation. r l' 4 .isahorlriontalsection, as on the line .4-,,40{Fi8.2.. M

-5 is 'a perspective View of a collapsible Vbox or carton.

vFig. 6 is a similar view 'of said box Aor carton as collapsed 'orflattened. Y Y 1' v Referring tothe drawings, irdesig-nates se eral ofthe open formel-links of the endless chain of 'a welbknown type of'box-making 'machine, which links are intermittently impelled in theusual manner to t-he path -of a verticallyreciprocating ejector 11,4vYwhereby A'in :each dwell of the chain a collapsible box (B) is'discharged from A`one of the'links through an opening 1'2 in a-table`13 which is supportcdby Va 'standard 14 cn then-ame structure.

:The form Aof box herein illustrated comprises a 7' bottom a, end wallsb and side walls c, the latter having therein adjacent the endsldiagonal scores `or creases d which enable the box to be collapsed 4orfiattened by the application of in- 75l ward pressure to the respectiveend walls.

The form of Vejector illustrated is similar to that described in LettersPat-ent of the United States No; 1,287,088 dated December 110, 1918,that is to say, it comprises a 'yielding lframe ofy inverted V-fornisupported by a vertically-reciprocative cross-head 15 which is mountedon vertical `guide posts 16 'on the table. This cross-head is connectedby means -of a-link 17 'to vone arm of a rocklever A18 which isfulcrumed on a standard 19 on the supporting frame. The 'other arm ofthe'lever is connected by means of a link 20 with one -arm of a lowerrock-lever 21 which is also fulcrurned on the standard 19; the other armof the lever 21 having a roll '22 operatively fitted in the run of asuitably-disposed face cam 23. This cam is fast on a drive shaft i231having its bearings in suitable standards, including the standard 14 onthe main frame, Vwhereby during the -operationof said shaft the cam inits rotation cheats, through the described Ylever and link connections,the timely reciprocation of the Vejector' in respect to each lsucceedinglink of the box chai-n. v

As` each box is discharged through the opening 142 -of the table 13 the`box is temporarily supported at the mouth of a guide chutev2`5depending from the table, which box is Vcollapsed vor iiattened and'then entered in the chute, as will presently appear. This chute is `ofappropriate internal for-in and dimensions for the reception andguidance therein ofeach succeeding flattened box,so that when thearticles are discharged `from ing element for the iiattenecl boxes. 11,0

At the top of the chute 25 are ngers 26 which are movable into and fromthe paths of the end portions of each succeeding box discharged from thechain 10, the walls of the chute having suitable openings 27 for thepassage of the fingers. These fingers when in inward position interceptand rsupport the box as it is discharged by the plunger 11, and when inoutward position they permit the descent of the nattened box in thechute. In the present instance the fingers are formed on the upper endsof upstanding arms 28 having at their lower ends sleeves 29which arefulcrumed on shafts 30 fixed to brackets 31 on the bed 32 of themachine. Fast on the sleeves 29 are upstanding arms 33 having at theirupper ends rolls 34 which are normally maintained in operative contactwith a cam 35 by means of suitably-disposed springs 36. yThis cam isfast on a shaft 37 which has its bearing in the standard 14 and isdriven from the main shaft 24 throughv meshing gear wheels 38 on therespective shafts. The contour of the cam 35 is such that the arms 33and their companion arms 28 are simultaneously actuated to eiect theinward and outward movement of the fingers 26 in timed relation to theoperation of the box ejector.

Two oppositely-disposed folders are reciprocative in longitudinal pathsintersecting the vertical planes of the respective end walls of the boxoverlying the chute, whereby such ends and the creased corners of the`sides of the box are pressed down in ar manner to collapse or atten thebox, that is,.the ends are folded inwardly and downwardly and the sidesare bent outwardly n the same plane as the bottom of. the box. (See Fig.6). In the present instance each of the folders comprises an elongatedbody plate .39Y

having upstanding perforated ears 40 which are slidably fitted on aguiderod 41 projecting from the table 13, and having also spaceddepending ironing members 42 of substantial length which are curved orbeveled at their nose portions/43 so as to bear smoothly against andirondown the opposing end wall of thebox. The folders are connected ,bymeans of links 44 to theupper ends of upstanding arms 45 having at theirlower ends sleeves 46 which are fulcrumed on Yshafts 47 fixed tobrackets 48 on the bed of the machine. Fast on the sleeves 46 areupstanding arms 480, the upperends of which are connected by links 49with upstanding arms 50 pivotally supported on the respective shafts30.The arms 50 are equipped with rolls 51 which are normally maintained inoperativecontact with a cam 52v fast on-the shaft 37 by means ofsuitably-disposed springs` 53, the contour of the cam 52 being Vsuchthat the arms 50 andtheir associated arms 45, 480 are simultaneouslyactuated to effect rthe requisite inward and outward movements of thefolders in timed relation to the operations ofthe fingersk 26 and thebox ejector 11. Y

In the construction illustrated the ratio of the gearing between theshafts 24 and 37 is such that the shaft 37. whichcarries the cams 35 and52 makes one rotation during two rotations of the shaft 24 which carriesthe cam 23; the contour of the latter cam isk such that the ejector islowered and raised during one-half rotation of the shaft 24 but is atrestduring the remainder of the rotation, and the relative contours ofthe two cams 35, 52 are such that in each rotation of the shaft 37,while the ejector is atk rest in raised position, the arms for actuatingthe fingers 26 and folders 42, respectively, are reciprocated inoppositedirections toeach other. j

. 42 are moved inward, the lower acting surfaces lof such folders thuspressing the opposing end In the relative positions of the parts shownin Fig. 2 the fingers 26 are in inward position, a box (B) is seated onthe fingers, the ejector 11 is up and the folders 42 are outward. In aquarter rotation of the shaft 37 and its cams 35 and 52 the parts arecaused to assume the relativey positions shown in Fig.l3, that isvtosay, the fingers 26 are gradually moved outward away from the ends ofthe box, and coincidentally the folders walls b of the box inward anddownward and the scored or creased side walls c outward and downward andat the same time forcing the flattened box down in the mouth of thechute, In the next quarter turn of the shaft 37 the folders v42 aremoved outward, the fingers26 are moved inward upon the ends of thepreviously flattened box, and the ejector is moved downward and upward,another box being positioned on the fingers by the descending ejector asseen in Fig. 2. In the next succeeding two quarter rotations of theshaft 37 the operations just described are repeated, and so on thesucceeding boxes are discharged from the box making machine, flattened,and entered in the chute. The assembled boxes progress to the bottom ordischarge end of the chute from which predetermined quantities can beremoved for packing or other purpose.

It is to be understood that my invention is not limited to thestructuralfeatures herein illustrated, as the mechanism may be variously modinedvwithin the principle of the invention and the scope of the appendedclaims.

I claim- Y f 1. The combination with means for supplying openfmouthboxes each having a bottom and collapsible wall members, ofreciprocative folding members movable toward and from each other acrossthe bottom of each succeeding box interposed therebetween and operativeto fold and iron the opposing end walls upon the bottom and at the sametime effect the outward bending of the respective side walls of the box,and a receiving element into which the flattened boxes are successivelydelivered.

2. The combination with means for supplying open mouth boxes each havinga bottom and co1- lapsible wall members, of means for supportingthebottom of each succeeding box, at the end walls thereof,reciprocative folding members movable toward and from each other acrossthe Vbottom of each succeeding box interposed there-V between andoperative to fold and iron the opposing end walls upon the bottom and atthe same time effect the outward bending of the respective side walls ofthe box, and means for actuating the supporting means and foldingmembers in timed relation to each other.

3. The combination with means for supplying boxes each having a bottomand collapsible wall members, of a vertically disposed box-receivingelement, means for supporting each succeeding box in horizontal positionat the mouthof the receiving element, 'means' including oppositely 140reciprocative ironing members for folding the collapsible members of thebox and at the same time depressing the box into the receiving element,and means for actuating the supporting and folding means in timedrelation to each other.

. 4. .The combination with means for supplying boxes each having abottom and collapsible wall members, of a box-receiving element, meansincluding reciprocative fingers for supporting a box box at the mouth ofthe receiving element, means including a pair of reciprocative dependingironing members for folding the collapsible members of the box and atthe same time depressing the box into the receiving element, and meansfor reciprocating the said ilngers and ironing members in timed relationto each other.

6. The combination with a carrier for supporting a succession ofindividual boxes, each having a bottom and collapsible wall members, andfeeding them successively toy a point of discharge, and means fordischarging each succeeding box downwardly from the carrier, of avertical boxreceiving element under the point of discharge, meansincluding reciprocative iingers for supporting a box at the mouth of thereceiving element, means including a pair of oppositeiy reciprocatingironing members for simultaneously folding the end walls and effectingthe outward bending of the respective side walls of the box, and meansfor actuating the said iingers and ironing members in timed relation toeach other and the box discharge means.

MICHAEL PARIDON.

